2.4 brings Badges of Justice off 25man raid content. Since right now it's totally new to people in that content I'm frequently hearing "shit I forgot to pick up my badges" etc.
How about a little reminder addon? Short of a hand smacking someone to pay attention, the addon could simply hook into a BigWigs boss kill event (victory) with a message 'Remember to loot your Badges... tard' :)
It's hard to break that long-engrained habit of not looting in raids. Master looter be damned! Seriously though, it's a question of who should put forth the effort. Should a dev put forth effort to create and maintain such an addon, or should you put forth the effort to break the habit.
I'm one for empowering users. You can break the habit, I believe in you! No really, I do, I'm not a lazy ass.